I need an answer asapp ty$..$

From the given beam in the fogure, using a unitorm live load of $18k\frac{N}{m},$ and a concentraled live load of $90KN,$ compute the following using influence line in pech case.

$(1)$ Compute the maximum reaction at $D.$

a$)210kN$

c$)264kN$

b$)164kN$

d$)288kN$

$(3)$ Compule the maximum negative shear at C$.$

a$)-129kN$

c$)-150kN$

b$)-164kN$

d$)-210kN$

$(3.$ Compute the maximum moment at C due to dead load plus live toad. Uniform dead load is $30N\frac{N}{m}$ :

a$)-210kN,m.$

c$)-264kN*m$

b$)-294kN.m.$

d$)-290kN.m.$

$(4)$ Compute the maximum positive moment at $C.$

a$)64kN$

c$)94kN$

b$)80kN$

d$)78kN$